Fixed a memory leak on input handler close

Signed-off-by: Bolehu <heyaohua@xfusion.com>

backport-trace-cmd-library-Fixed-a-memory-leak-on-input-handl.patch

@@ -0,0 +1,43 @@
+From 402be29ae6fa1e29c963c71be2713687a4a71686 Mon Sep 17 00:00:00 2001
+From: "Tzvetomir Stoyanov (VMware)" <tz.stoyanov@gmail.com>
+Date: Tue, 14 Sep 2021 16:12:15 +0300
+Subject: [PATCH] trace-cmd library: Fixed a memory leak on input handler close
+
+When an input handler to a trace file is closed with tracecmd_close(),
+the list with buffers is not freed. This leads to a memory leak. Added
+logic to free that list.
+
+Link: https://lore.kernel.org/linux-trace-devel/20210914131232.3964615-5-tz.stoyanov@gmail.com
+
+Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
+Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
+---
+ lib/trace-cmd/trace-input.c | 5 +++++
+ 1 file changed, 5 insertions(+)
+
+diff --git a/lib/trace-cmd/trace-input.c b/lib/trace-cmd/trace-input.c
+index 9253bc37..ffe87e8a 100644
+--- a/lib/trace-cmd/trace-input.c
++++ b/lib/trace-cmd/trace-input.c
+@@ -3484,6 +3484,7 @@ void tracecmd_ref(struct tracecmd_input *handle)
+ void tracecmd_close(struct tracecmd_input *handle)
+ {
+ 	int cpu;
++	int i;
+ 
+ 	if (!handle)
+ 		return;
+@@ -3521,6 +3522,10 @@ void tracecmd_close(struct tracecmd_input *handle)
+ 	free(handle->version);
+ 	close(handle->fd);
+ 
++	for (i = 0; i < handle->nr_buffers; i++)
++		free(handle->buffers[i].name);
++	free(handle->buffers);
++
+ 	tracecmd_free_hooks(handle->hooks);
+ 	handle->hooks = NULL;
+ 
+-- 
+2.33.0
+

trace-cmd.spec

@@ -1,6 +1,6 @@
 Name:                trace-cmd
 Version:             2.9.2
-Release:             5
+Release:             6
 Summary:             A front-end for Ftrace
 License:             GPLv2 and LGPLv2
 URL:                 http://git.kernel.org/?p=linux/kernel/git/rostedt/trace-cmd.git;a=summary
@@ -9,6 +9,7 @@ Source1:             kernelshark.desktop
 
 Patch0001:           backport-trace-cmd-report-Fix-typos-in-error-messages.patch 
 Patch0002:           backport-trace-cmd-library-Fix-version-string-memory-leak.patch
+Patch0003:           backport-trace-cmd-library-Fixed-a-memory-leak-on-input-handl.patch
 
 BuildRequires:       gcc xmlto asciidoc mlocate libxml2-devel chrpath
 BuildRequires:       gtk2-devel glib2-devel desktop-file-utils libtraceevent-devel
@@ -68,6 +69,9 @@ echo "%{_bindir}/%{name}" > $RPM_BUILD_ROOT/etc/ld.so.conf.d/%{name}-%{_arch}.co
 %{_mandir}/man5/*
 
 %changelog
+* Fri Jan 06 2023 Bolehu <heyaohua@xfusion.com> - 2.9.2-6
+- trace-cmd library: Fixed a memory leak on input handler close
+
 * Fri Jan 06 2023 Bolehu <heyaohua@xfusion.com> - 2.9.2-5
 - trace-cmd library: Fix version string memory leak